Heddle frame



E. A. GLOOR March 19, 1935.

HEDDLE FRAME Filed NOV. 20, 1935 INVENTOR 51m 12 176 ATTORNEY- PatentedMar. 19 U nnirso stares earsa'r OFFICE '7 Claims.

This invention relates to harness for looms and particularly to thatclass in which each unit comprises, with heddles, a frame carryinghorizontal upper and lowerstrips supported at their ends by the sidemembers of the frame and on which the heddles are strung and horizontalbars between which the strips are arranged and which are supportedbetween the frame side members in screw eyes attached to the upper andlower frame members and to which bars the strips are respectivelyconnected between their ends by spaced hooks, each bar and thecorresponding hooks serving to reinforce the (usually thin)corresponding strip against the load of the heddles when such barhappens to be the upper one as the unit is used.

e construction heretofore has been such that if it was required toremove any hook from the rest of the unit this could not be done withouttaking the frame apart so that the barto which such hook was attachedcould be shifted endwise sufficiently to clear the hook since the hookwas not capable of being uncoupled from the bar in a directiontransverse thereof. According to this invention the hook may be removedwithout disturbing the frame, to wit by uncoupling the hook in theindicated direction, and yet accidental uncoupling of the hook from thebar' or the strip, due to motion of the unit, is obstructed- A furtherfault with the heretofore existing construction is that the free end ofthe strip-receiving hook proper of the hook is likely to catch in thestrip-penetrated slot of a heddle immediately adjoining the hook andsometimes the vertical edge of such a heddle will engage and be caughtin this hook proper due to the heddle turning on its own vertical axis,so that in either case the heddle becomes in effect inter-lockedwith andhence encumbered by the hook or ceases to be entirely free to shift onthe strip according to the requirements of the warp thread which itcontrols, thereby producing faulty weaving. Another object is so toconstruct the unit that the interlocking of the hook and an adjoiningheddle in either of these ways shall be impossible.

In the drawing,

, Fig. 1 is an elevation of a conventional harness frame;

Fig. 2 shows in elevation one corner thereof and two of the three hooksherein set forth;

Figs. 3 and 4 are sectional views each on the line :c-x, Fig. 2, showingtwo alternative forms of the improved unit;

Fig. 5 is a sectional View on line yy, Fig. 2, showing anotheralternative form;

Fig. 6 is a view illustrating the manner of removing from its bar thehook shown in Fig. 5 and Figs. '7 and 8 are sectional plan views ofalternate forms of said hook shown with a fragmentof said bar. v l E Thefollowing parts are those characterizing a conventional harness unitofthe class indicatedi The frame, comprising upper and lower horizontalwooden members 1 and the side members 2 consisting of metal strips thestiff horizontal bars 3 supported in spacedscrew-eyes 4 screwed into themembers 1; and thefthinspring-metal horizontal strips 5 arranged betweensaidbars. and penetrating at their ends the members? and held taut byspring clips 6 engaged in eyes in the strips and attached to members 2,being flexible and adapted to be sprung or to yield toward the bar.Strung on thestrips are the heddles 7 which are here of fiat thin steeland have vertical slots '70. somewhat longer than the wide or verticaldimension of the strips and also somewhat wider thanthe latter are thickso as to have slight vertical movability thereon and in any event befree to slidethe'reon:

Three forms of hooks forfcoupling each strip 5 to the corresponding barareshown in Figs. 3 to 5 according to my invention, all having hooksproper whose crotches open reversely to each other and'receiving thestrip and bar between the spaced points of support thereof and eachattachable to or removable from the bar and strip without disturbingthem except by flexing the stripfltoward the bar and each formed so asto prevent interlocking of the same with either heddle which may adjoinit.

- Hooks 8 and 9 (Figs. 3 and i) are somewhat similar in the followingparticulars: Each may be generally S-shaped, as by being formed of bentwire; the upper hook proper 8a (or 9a) which receives the bar '3, hasmeans to obstruct free escape of the bar formed by the free end of thehook proper reaching so close to the hook shank that the bar cannot passbetween them without distending the hook proper; and the lower andvertically elongated hook proper 81) (or 9b), which receives strip 5,likewise has means to ob.- struct free escapeof the strip formed by thefree. end of the hook proper 8bv and a bend 9c of the hook proper 9breaching so' close to the hook shank that the strip cannot pass betweenthem without distending the hook proper.

The hook 10 (Fig. 5) is shown as a sheet metal stamping. Its upper hookproper 10a; which receives the bar 3, has means to obstruct free escapeof the bar formed by a tongue 10a: projecting oppositely to the free endof the hook proper, said substantially parallel, said passage beinginclined outwardly and downwardly.

In order to detach the hook 8 or 9 strip 5;

which will yield for the purpose, is first sprung upward and forced pastthe mentioned obstructing means of the lower hook proper, withincidental distention of the latter, and then the hook is forcedupwardly until the bar 3 clears the obstrucing means of its upper hookproper, incidentally distending the same. I

In order to detach the hook l0 strip 5 is first sprung upward and thentwisted until its lower edge will enter passage 10s, whereupon it ispassed downwardly through the passage, and then the hook is first turnedto the position of Fig. 6 rela tively to the bar and lifted clear of thesame. The mentioned "interlocking of an adjoining heddle with the hooksproper 8b, 92) or 10b by the upper end of the slot 7a of the heddlecatching the extremity of such hook proper is prevented by arrangingsaid extremity out of the range of movement of said slot-end permittedby strip 5. That is to' say, the heddle, and hence said slot end, hasits range of movement vertically or horizontally limited by the strip 5,and according to this invention the extremity of the hook proper of hook8 is above, that of the hook proper of hook 9 is laterally beyond, andthat of the hook proper of hook 10 is below such range. In the ordinaryconstruction the extremity of the lower hook proper is but slightlyabove the top edge of the strip and hence within said range of the topof the heddle slot, thus permitting the interlocking in question.

The mentioned interlocking of anadjoining' heddle with the lower hooksproper due to the vertical edge of a heddle engaging therein may beavoided by forming the material of such hook proper round in crosssection as in Fig. 7 rather than rectilinear as in Fig 8. In Fig. 8 ifan adjoining heddle skews and its edge enters the lower hook proper itwill be caught and held by the corners existing at 11. In the form shownin Fig.-

7 this is avoided by its corners being removed,

' or the material of the hook proper being round in cross section. Thisfeature of my invention is applicable to any hook, whether or not of oneof the shapes hereinbefore set forth. I

Having thus fully described my invention what I claim is:

1. A harness unit including, with a horizontal heddle-supporting strip,a horizontal stiff bar above the strip and a frame having means tosupport the strip and bar each at longitudinally spaced points thereof,a connecting hook arranged between said points of, and having hooksproper whose'crotches are open reversely to each other and respectivelyreceiving, said strip and bar and freely shiftable along the same, saidstrip being yieldable toward the bar to clear the hook proper receivingthe same.

2. A harness unit including, with a horizontal heddle-supportingstrip, ahorizontal stiff bar above the strip and a framehaving means to properwhose crotches are open reversely to each other and respectivelyreceiving, said strip and support the strip and bar each atlongitudinally spaced points thereof, a connecting hook arranged betweensaid points of, and having hooks bar and freely shiftable along thesame, said strip] being yieldable toward the bar to clear the hookproper receiving the same and the hookhaving means to obstruct the freeescape of the strip from thelatter hook proper. Y

3. A harness unit including, with a horizontal heddle-supporting strip,a horizontal stiif bar above the strip and a frame having means tosupport the strip and bar each at longitudinally spaced points thereof,a connecting hook ar-,

hook proper receiving the same and the hook,

having means to obstruct the free escape of the strip and bar from therespective hooks proper.

4. A harness unit including, with. a horizontal heddle-supporting strip,a horizontal stiff bar above the strip anda frame having means tosupport the strip and bar each at longitudinally spaced pointsthereof, aconnecting hook arranged between said points of the strip and bar anddisconnectively connected to the strip and having a hook properreceiving'the bar and a tongue projecting oppositely to the free end ofsaid hook propensaid end andtongue both fiank-' ing one side of the barand being bent oblique- 1y to the plane of the hook substantiallyParallel to each other and forming between them an oblique restrictedpassage for escape of the bar from said hook proper. s v

5. A harness unit including, with a horizontal heddle-supporting strip,a horizontal stiffv vb'ar above the strip and a frame having means to'support the strip and bar each at longitudinally spaced points thereof,a connecting hook arranged between saidpoints of the strip andbar anddisconnectively connected to the bar and having a hook proper receivingthe strip and a tongue projecting toward'the free end of the hook properand forming 'With'said end a downwardly and outwardly inclinedrestricted passage having substantially parallel sides, said passagepermit 7. A harness unit including a horizontal strip,

a heddle having a vertical'slot loosely penetrated by the strip, avertically extending hook having its hook proper free to shift around avertical axis and loosely receiving the strip, and means, in'-" cludinga frame, supporting the strip and hook,

said hook proper having the surfacesthereof adjoining the strip roundedin the cross-section of said hook proper.

EMIL A. GLQOR.

